Automatic continuous preparing equipment for carbon structural nano-material

Abstract

A preparing equipment of the present invention includes a vacuum chamber comprising a sandwich vacuum chamber connected via pipeline to a water cooler, and an internal vacuum chamber connected via pipeline to a vacuum device and a gas supplier; a rod feeder with anode set at its end extending to the vacuum chamber and cathode opposite to the anode; a controlling box connected via wire to a power supply, the vacuum device and the water cooler; the power supply also connected to the anode and the cathode; a feedback device connected via wire to the anode, the cathode and the controlling box. Its features includes monitoring arc voltage via the feedback device, maintaining the arc current and voltage constant, continuous automatic rod feeding, small carbon rod resulting in great current density, full burning, high nanometer carbon tube yield and high quality, and low power consumption.

Description

technical field [0001] The invention belongs to the material preparation equipment category, and in particular relates to the preparation equipment of nano-carbon structure materials. Background technique [0002] At present, there are various methods for preparing nano-carbon structure materials, among which the vacuum carbon arc combustion synthesis method is the most common, but the equipment occupies a large area, and a single equipment takes about 100m2. 2 . Vacuum carbon arc combustion synthesis uses carbon poles of 2000mm×40mm×40mm, which are expensive, each about 2000 US dollars. At the same time, the power consumption is large, requiring 30kVA / h electric energy; the carbon cannot be fully burned during the preparation process, and the yield is low, which is only 3-4‰ of the burned carbon. In addition, the arc length cannot be automatically controlled during the preparation process, and the arc length varies from time to time, which m...

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Problems solved by technology

[0002] At present, there are various methods for preparing nano-carbon structure materials, among which the vacuum carbon arc combustion synthesis method is the most common, but the equipment occupies a large area, and a single equipment takes about 100m2. 2

The carbon electrode of 2000mm×40mm×40mm is used in the synthesis of vacuum carbon arc combustion, which is expensive, about 2000 US dollars each

At the same time, the power consumption is large, requiring 30kVA / h electric energy; the carbon cannot be fully burned during the preparation process, and the yield is low, which is only 3-4‰ of the burned carbon.

In addition, the arc length cannot be automatically controlled during the preparation process, and the length varies from time to time, which is easy to break the arc, resulting in frequent interruptions in the carbon arc combustion synthesis process

Moreover, the equipment cannot automatically feed the material, and it needs to be stopped after a carbon pole is burned out and refilled.

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